Question about 1998 Chevrolet Blazer

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No heat, blows cold air, flushed system, then a day later blew radiator, changed that still no heat... one mechanic said its the blender box? any suggestions will help...

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I would check the heater tap in the heater hose, this may be blocking the flow. {causing excess pressure It could also be possible that the heater cable may have come off the back of the control or off the heater flap on the box. lastly, replace the $8 engine thermostat. You can also test it in a glass of boiling water and watch to see if it opens. Good luck.

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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1 Answer

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Bravada Radiator Hose


Good day
You said it blow out cold air, can you be more specific and this sounds like a water pump problem. Check it out and let us know.
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1 Answer

My 2002 buick lasabre heater blows cold.


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1 Answer

I have a 2000 chryler concorde with no heat. I changed the thermostat.I 've checked the coolant. The blower is working but only cold air. Any solutions


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